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XBOX ONE and STEAM BOX
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<blockquote data-quote="dullonien" data-source="post: 570969" data-attributes="member: 13739"><p>PC's with dedicated graphics don't use 'shared RAM', only pc's running integrated graphics use shared RAM. On a desktop, if the graphics card has 1GB of RAM it can only access 1GB of RAM, it cannot delve into system RAM for extra, because the bus speed isn't sufficient to transfer that data. So even the very latest high-end graphics card from nVidia, the GTX 780 only has access to 3GB or RAM.</p><p></p><p>I'd also expect the amount of that 8GB in the Xbox One to be accessible by the graphics hardware to be variable. I'm not sure I believe that a full 3GB would be held back at all times for background tasks, that's a lot for what exactly? Running skype in the background? I'd imagine that more than 5GB will be accessible by games.</p><p></p><p>As for the CPU, numerous small cores are more efficient than a couple of large ones because individual cores can be turned on and off when required. Just look at smartphones, four cores are becoming commonplace, and the S4 has 8 cores (over two CPU's).</p></blockquote><p></p>
[QUOTE="dullonien, post: 570969, member: 13739"] PC's with dedicated graphics don't use 'shared RAM', only pc's running integrated graphics use shared RAM. On a desktop, if the graphics card has 1GB of RAM it can only access 1GB of RAM, it cannot delve into system RAM for extra, because the bus speed isn't sufficient to transfer that data. So even the very latest high-end graphics card from nVidia, the GTX 780 only has access to 3GB or RAM. I'd also expect the amount of that 8GB in the Xbox One to be accessible by the graphics hardware to be variable. I'm not sure I believe that a full 3GB would be held back at all times for background tasks, that's a lot for what exactly? Running skype in the background? I'd imagine that more than 5GB will be accessible by games. As for the CPU, numerous small cores are more efficient than a couple of large ones because individual cores can be turned on and off when required. Just look at smartphones, four cores are becoming commonplace, and the S4 has 8 cores (over two CPU's). [/QUOTE]
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